I recently just purchased an 03 CBR600RR with only 2100 miles. Its mint no scratches or nothing. i thought everything was perfectly fine, but I guess not. i drove it fine for a week. But for the past 4 days after I drive it for say 30 mins, 1 hour, etc. turn it off n then 5 minutes later start it to go out again, it wont start. The battery dies. I turn the kill switch on n all the lights light up. I turn it off they dont light up. I have to roll down the road at 4+mph and pop/jump start it. I had the battery checked out today n it was 100% fine. I am wondering what it is without paying up the *** for a diagnastics test. Please Help! Thanks Much.

 

By the way the clock stays on all the time even when I turn the bike off. My buddy has an 05 and his doesn't do that. I am wondering if thats why or how I turn off.

 

The last statement is inaccurate. When compared to my 05 anyway. My clock stays on at all times. Key in or not, ignition on or off. Maybe a loose connection at the battery? or at the starter? Sounds like the battery has juice and the test proves it. I'd trace ALL wires/connections at battery, starter and start button? Good luck with it.

 

sounds like a textbook case of 2003-2004 Regulator/Rectifier module failure. very common on these model years. battery tests fine but after a while of riding it loses it's charge. the Stator is tossing a charge (because the bike continues to run and be bump started), but the R/R is not supplying proper current.

a replacement R/R should have a metal backing plate on it facing the headers while the heat sinks face away from the bike. the R/R is located under the left mid fairing next to the Radiator. it's big and has 2 sets of three wires coming out of it. one set green and one set yellow. yellow wires come from the stator.

 

the clock on my 07 stays on all the time as well..

 

same thing has happened to my bike before. how much does a replacement regulator/rectifier cost?

 

brand new? a lot... find a wrecked 2005-2006 and take it off that.

 

I alsogot an 03 RR about a month agoand I have 'bumped' mine a few times already. It seems like the same type of situation also. If your bike is still hot when you try to start it, you'll probably hear the fan running which must take a substatial amount of juice because mine wont crank when its on. The guy I bought the bike off said that it never did it to him but it was the original battery. The diagnostics might come back Ok, but we are both pry due for a new battery. The other thing he told me, is that he heard that Honda's dont charge the battery unless the RPM's are above 3K.....dont know how true that is. Oh, last thing....my bike has an alarm on it which also uses juice but the clock remaining on is normal on the '03.

 

The clock is supposed to stay on all the time, even the 05 models. If your friends' clock on his 05 600RR isn't on, then his clock is broken.

Have you tried to give it just a little throttle while you are starting it. Not much, but some.

When I first bought my 06, I rode it for about an hour, parked it, and when I went to start it again, it wouldn't start. I just blipped the throttle a little while trying to start it and it fired right up. It did it one more time a couple months later, and hasn't done it since. I have the 4-year extended warranty on her, so I'm not worried about it anymore.

 

You probably should check your battery or check your battery charging system on your bike. You shouldn't have any problems cranking the bike if your fan is on. My bike cranks with no problems with both HID ballasts warming up and the fan on, and it's never struggled through cranking ever.